Rare-earth mineral deposits of the Mountain Pass district, San Bernardino County, California
By: by J. C. Olson [and others] with a foreword on History of the discovery at Mountain Pass, California, by D. F. Hewett.
Publisher: U.S. Govt. Print. Off.
Published: 1954
Place of publication: Washington
Language: eng
Number of pages: 75
Subjects: Rare earths; Geology -- California -- San Bernardino County; Mines and mineral resources -- California -- San Bernardino County; Mines and mineral resources -- California -- History
Other titles: Mountain Pass district, San Bernardino County, California.
Notes: Bibliography: p. 64-65.
Part of the illustrative matter folded in pocket.